How to find out SQL Server table's read/write statistics?

Question

Is there a way to find a statistics on table read and write count on SQL Server 2005/2008?

I am specifically looking for DMVs/DMFs without usin

Answer 1

If you have a good clustered index (i.e., ever increasing, unique, narrow) then the real determining issues for Fill Factor are how the table is updated and the data types of the columns. If the columns are all fixed size (e.g., integer, Decimal, Float, Char) and non-nullable then an update cannot increase the storage required for a row. Given the good clustered index you should pick a Fill Factor of 90+ even 100 since page splits won't happen. If you have a few variable length columns (e.g. a Varchar to hold User Name) and the columns are seldom updated after insert then you can still keep a relatively high Fill Factor. If you have data that is highly variable in length (e.g., UNC paths, Comment fields, XML) then the Fill Factor should be reduced. Particularly if the columns are updated frequently and grow (like comment columns). Non-Clustered indexes are generally the same except the index key may be more problematic (non unique, perhaps not ever increasing). I think sys.dm_db_index_physical_stats gives the best metrics for this but it is after the fact. Look at the avg/min/max record size, avg frag size, avg page space used to get a picture of how the index space is being used. HTH.